In his first-ever interview, the sole Australian survivor of the Waco siege has revealed to 60 Minutes what really took place during the 51-day stand-off, and why he believes crazed cult leader David Koresh will one day return to Earth as the son of God.

Qld minister's emails to be reviewed

More than 30,000 of Queensland Energy Minister Mark Bailey's private emails will be examined before a decision is made about whether to investigate him for corruption.

The Crime and Corruption Commission released a statement on Thursday confirming it had completed an initial assessment of the minister following a complaint by the state opposition.

The CCC confirmed it had worked with Mr Bailey to retrieve more than 30,000 emails from his private account.

"It is important to note many of these emails were from a period of time before Minister Bailey became an elected official and may not be relevant to the ongoing assessment," the statement read.

The CCC said a decision about whether to investigate the minister would be made after it received a report from the director-general of the Department of Premier and Cabinet and the state archivist.

The pair have been tasked with reviewing the contents of the emails to determine if any of them constitute a public record and if so, whether they were dealt with correctly.

An investigation was launched into Mr Bailey after he reportedly received emails in his private account from Electrical Trades Union secretary Peter Simpson over his concerns about a proposed superannuation merger, which was abandoned in January.